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basic properties of saline soil in Da'an, western Jilin, China

Research in Cold and Arid Regions 2015年第5期7卷 568-572页

作者： Xin Zhou Qing Wang XueFei Zhang TianWen Yu XuDong Zhang College of Construction Engineering Jilin University

This paper studied the basic properties of saline soil at different depths of a sampling site in Da＇an, China, through field reconnaissance and laboratory analysis. A series of experiments which comprised the analyses of grain size distribution, mineral composition, soil physical properties, soluble salt concent, pH, organic content and cation exchange capacity were conducted. Through these experiments, the distribution rule of each property and their causes are discussed. These results could provide a fundamental base for the study of moisture migration.

关键词： saline soil basic properties distribution rule moisture migration

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Fabrication and Optical and Electrical properties of Poly(2,5-di-n-butoxyphenylene) Nanowire Arrays

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Chemical Research in Chinese Universities 2001年第Z1期17卷 53-54页

作者： YU BoZhang Department of Chemistry Lanzhou University

Regular patterned arrays of nanomaterials have been widely fabricated and studied for their benefits in construction of novel type of optical, electron and magnetic device1-2, these kinds of devices center on the inorganic materials. With the development of synthesis and application of new type of polymer material, the design and construction of organic nanopolymer have become a great interest. Poly(p-phenylene)(PPP) and some derivatives have been widely investigated as a candidate for high strength, high temperature and conducting polymers, and can be used as electrode materials in electrochemical cells, blue emitting diodes: The polymers obtained by oxidative coupling polymerization of benzene nuclei with aluminum chloride and copper(Ⅱ) chloride is insoluble in all solvent and inflexible, which hinders revealing their basic properties. Introduction of flexible side chains into the aromatic rings can not only render solubility and processibility, but also improve or modify optical and electrical properties of the polymers. As a further step in assembling method and optoelectronic studies, it is attractive to investigate the properties of photoluminescence and electroluminescene of regular patterned arrays of poly(p-phenylene) deriva-tives nanowires.

关键词： design and construction electrochemical cells electrical properties inorganic materials electrode materials conducting polymers oxidative coupling aluminum chloride basic properties emitting diodes type of high strength

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Hom-Leibniz Superalgebras

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Chinese Quarterly Journal of Mathematics 2014年第4期29卷 583-591页

作者： SHEN Zhen-jun WEI Zhu ZHANG Qing-cheng Mathematics and Statistics Northeast Normal University Jilin 130024 China

We gived the definition of Hom-Leibniz superalgebra and studied its basic properties. In particular, the derivations of Hom-Leibniz Superalgebras are portrayed in detail.

关键词： Hom-Leibniz superalgebras derivations basic properties

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